title: Ultrastructure of the ovarian germ cells in the quail embryos, with special reference to the oocytes.
mesh_terms: D000818:Animals; D004625:Embryo, Nonmammalian / Q000648:ultrastructure; D005260:Female; D005854:Germ Cells / Q000648:ultrastructure*; D009865:Oocytes / Q000254:growth & development / Q000648:ultrastructure; D010053:Ovary / Q000166:cytology*; D011784:Quail / Q000196:embryology*